IX. Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.
People cut down trees for agricultural land. Wild animals have less natural habitat.
A.People cut down trees for agricultural land because wild animals have less natural habitat.
B.People cut down trees for agricultural land, for wild animals have less natural habitat.
C.Wild animals have less natural habitat, so people cut down trees for agricultural land.
D.Wild animals have less natural habitat because people cut down trees for agricultural land.